label: acyl-lipid omega-3 desaturase (cytochrome b5) activity
label_lc: acyl-lipid omega-3 desaturase (cytochrome b5) activity
description: "Catalysis of the reaction: a (9Z,12Z)-octadecadienoyl-containing glycerolipid + 2 Fe(II)-[cytochrome b5] + 2 H+ + O2 = (9Z,12Z,15Z)-octadecatrienoyl-containing glycerolipid + 2 Fe(III)-[cytochrome b5] + 2 H2O."