label: heme oxygenase (decyclizing) activity
label_lc: heme oxygenase (decyclizing) activity
description: "Catalysis of the reaction: heme b + 3 O2 + 3 reduced [NADPH-hemoprotein reductase] = biliverdin + CO + Fe2+ + H+ + 3 H2O + 3 oxidized [NADPH-hemoprotein reductase]."