label: leukotriene-B4 20-monooxygenase activity
label_lc: leukotriene-b4 20-monooxygenase activity
description: "Catalysis of the reaction: leukotriene B4 + O2 + reduced [NADPH-hemoprotein reductase] = 20-hydroxy-leukotriene B4 + H+ + H2O + oxidized [NADPH-hemoprotein reductase]."