The spells are applied to the spellbook but the actual domain power does not work. It does not apply the attack bonus or the negative energy damage bonus. Attempted it against ghouls, eyeballs, beetles, and a rock worm.
I think it's a player tool you have to setup, I imagine you are using the domain power instead.
It would be a good idea if it was! Looking at it right now and there is no player tool for it however.