costunolide 3beta-hydroxylase activity
Catalysis of the reaction: (+)-costunolide (12,6alpha) + reduced [NADPH-hemoprotein reductase] + dioxygen = 3beta-hydroxycostunolide + oxidized [NADPH-hemoprotein reductase] + H2O.
GO:0016712
oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
is_a