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