Reaction catalyzed by 1-acylglycerophosphocholine O-acyltransferase (2.3.1.23)

		+			=		CoA	+
	linolenoyl-CoA	+		1-linolenoyl-sn-glycero-3-phosphocholine	=		CoA	+		1,2-dilinolenoyl-sn-glycero-3-phosphocholine