1-4,7,10,13,16,19-Docosahexaenoyl-sn-glycerol-3-phosphate O-acyltransferase (C22:6(4Z,7Z,10Z,13Z,16Z,19Z)) (CoA Substrate)
c226coa_c + 1docos4710131619eg3p_c ⇌ coa_c + pa226n3_c