Also if this helps anyone, if you need to convert the enum to its non-display name as a string.
FString PROJ_BlueprintFunctions::GetRegionInfoNonDisplayString(ERegionInfo RegionInfo)
{
FString ERegionInfoString{ UEnum::GetValueAsString(RegionInfo) };
ERegionInfoString.RemoveFromStart(TEXT("ERegionInfo::"));
return ERegionInfoString;
}