AuraSeer said:Yes, the FAQ says you can use metamagic feats on a domain spell. The spell is prepared in a domain slot at its higher, metamagicked level.
Nope. It's explicitly limited to non-domain spells. Check this page.PinGuim said:I think you can convert the domain spell in healing, if you wiled positive energy.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.