diff --git a/wagtail/admin/navigation.py b/wagtail/admin/navigation.py
index c63d123cee..0be5f75d3f 100644
--- a/wagtail/admin/navigation.py
+++ b/wagtail/admin/navigation.py
@@ -1,3 +1,5 @@
+from django.conf import settings
+
 from wagtail.core.models import Page
 
 
@@ -26,3 +28,19 @@ def get_explorable_root_page(user):
         root_page = None
 
     return root_page
+
+
+def get_site_for_user(user):
+    root_page = get_explorable_root_page(user)
+    if root_page:
+        root_site = root_page.get_site()
+    else:
+        root_site = None
+    real_site_name = None
+    if root_site:
+        real_site_name = root_site.site_name if root_site.site_name else root_site.hostname
+    return {
+        'root_page': root_page,
+        'root_site': root_site,
+        'site_name': real_site_name if real_site_name else settings.WAGTAIL_SITE_NAME,
+    }
diff --git a/wagtail/admin/utils.py b/wagtail/admin/utils.py
index 65fc873e03..1f15eaf43c 100644
--- a/wagtail/admin/utils.py
+++ b/wagtail/admin/utils.py
@@ -1,27 +1,8 @@
 import sys
 
-from django.conf import settings
-
-from wagtail.admin.navigation import get_explorable_root_page
 from wagtail.utils.deprecation import MovedDefinitionHandler, RemovedInWagtail29Warning
 
 
-def get_site_for_user(user):
-    root_page = get_explorable_root_page(user)
-    if root_page:
-        root_site = root_page.get_site()
-    else:
-        root_site = None
-    real_site_name = None
-    if root_site:
-        real_site_name = root_site.site_name if root_site.site_name else root_site.hostname
-    return {
-        'root_page': root_page,
-        'root_site': root_site,
-        'site_name': real_site_name if real_site_name else settings.WAGTAIL_SITE_NAME,
-    }
-
-
 MOVED_DEFINITIONS = {
     'WAGTAILADMIN_PROVIDED_LANGUAGES': 'wagtail.admin.locale',
     'get_js_translation_strings': 'wagtail.admin.locale',
@@ -41,6 +22,8 @@ MOVED_DEFINITIONS = {
 
     'send_mail': 'wagtail.admin.mail',
     'send_notification': 'wagtail.admin.mail',
+
+    'get_site_for_user': 'wagtail.admin.navigation',
 }
 
 sys.modules[__name__] = MovedDefinitionHandler(sys.modules[__name__], MOVED_DEFINITIONS, RemovedInWagtail29Warning)