On my cleric with plant domain and wisdom 17, cha 14 it says you can turn vermin as though they were undead but I go up to rats and try it and nothing happens.
Regular turning undead works but why would it say you can do that if you can't?
I don't think that is intentional.
I would understand if he couldn't turn dire rats, spiders, etc. but regular rats should be getting spooked. That's what was advertised in the description. Huh!