Term Name:	magnesium-protoporphyrin IX monomethyl ester (oxidative) cyclase activity
Synonyms:	magnesium-protoporphyrin-IX 13-monomethyl ester,NADPH:oxygen oxidoreductase (hydroxylating), Mg-protoporphyrin IX monomethyl ester (oxidative) cyclase activity, Mg-protoporphyrin IX monomethyl ester oxidative cyclase activity
Definition:	Catalysis of the reaction: magnesium protoporphyrin IX 13-monomethyl ester + 3 NADPH + 3 H+ + 3 O2 = divinylprotochlorophyllide + 3 NADP+ + 5 H2O.
Ontology:	GO: Molecular Function [GO:0048529]    QuickGO    AmiGO