oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NAD(P)H as one donor, and incorporation of one atom of oxygen imidazoleacetate 4-monooxygenase activity https://github.com/geneontology/go-ontology/issues/30193 imidazoleacetic monooxygenase activity KEGG_REACTION:R04066 molecular_function GO:0047717 imidazoleacetic hydroxylase activity 4-imidazoleacetate,NADH:oxygen oxidoreductase (5-hydroxylating) Catalysis of the reaction: H+ + imidazol-4-ylacetate + NADH + O2 = 5-hydroxyimidazole-4-acetate + H2O + NAD+. MetaCyc:IMIDAZOLEACETATE-4-MONOOXYGENASE-RXN RHEA:19425 imidazoleacetate hydroxylase activity EC:1.14.13.5