(9Z,12Z)-octadecadienoyl-CoA + 1-hexadecanoyl-sn-glycero-3-phosphocholine => 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine + CoA
(9z,12z)-octadecadienoyl-coa + 1-hexadecanoyl-sn-glycero-3-phosphocholine => 1-hexadecanoyl-2-(9z,12z-octadecadienoyl)-sn-glycero-3-phosphocholine + coa