1-hexadecanoyl-3-octadecanoyl-sn-glycerol + (9Z)-octadecenoate + H(+) => 1-hexadecanoyl-2-(9Z)-octadecenoyl-3-octadecanoyl-sn-glycerol + H2O
1-hexadecanoyl-3-octadecanoyl-sn-glycerol + (9z)-octadecenoate + h(+) => 1-hexadecanoyl-2-(9z)-octadecenoyl-3-octadecanoyl-sn-glycerol + h2o