in AIController.h
UFUNCTION(BlueprintCallable, Category = "AI|Navigation", Meta = (AdvancedDisplay = "bStopOnOverlap,bCanStrafe,bAllowPartialPath"))
AIMODULE_API EPathFollowingRequestResult::Type MoveToLocation(const FVector& Dest, float AcceptanceRadius = -1, bool bStopOnOverlap = true,
bool bUsePathfinding = true, bool bProjectDestinationToNavigation = false, bool bCanStrafe = true,
TSubclassOf<UNavigationQueryFilter> FilterClass = NULL, bool bAllowPartialPath = true);
You have exposed AcceptanceRadius