Converts 1-acyl-sn-glycerol-3-phosphate (lysophosphatidic acid or LPA) into 1,2-diacyl-sn-glycerol-3-phosphate (phosphatidic acid or PA) by incorporating an acyl moiety at the sn-2 position of the glycerol backbone. a 1-acyl-sn-glycero-3-phosphate + an acyl-CoA = a 1,2-diacyl-sn-glycero-3-phosphate + CoA (9Z)-octadecenoyl-CoA + 1-(9Z-octadecenoyl)-sn-glycero-3-phosphate = 1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phosphate + CoA 1-(9Z-octadecenoyl)-sn-glycero-3-phosphate + hexadecanoyl-CoA = 1-(9Z)-octadecenoyl-2-hexadecanoyl-sn-glycero-3-phosphate + CoA 1-(9Z-octadecenoyl)-sn-glycero-3-phosphate + heptadecanoyl-CoA = 1-(9Z)-octadecenoyl-2-heptadecanoyl-sn-glycero-3-phosphate + CoA (9Z,12Z)-octadecadienoyl-CoA + 1-(9Z-octadecenoyl)-sn-glycero-3-phosphate = 1-(9Z)-octadecenoyl-2-(9Z,12Z)-octadecadienoyl-sn-glycero-3-phosphate + CoA 1-(9Z-octadecenoyl)-sn-glycero-3-phosphate + tetradecanoyl-CoA = 1-(9Z)-octadecenoyl-2-tetradecanoyl-sn-glycero-3-phosphate + CoA 1-(9Z-octadecenoyl)-sn-glycero-3-phosphate + pentadecanoyl-CoA = 1-(9Z)-octadecenoyl-2-pentadecanoyl-sn-glycero-3-phosphate + CoA (9Z)-octadecenoyl-CoA + 1-hexadecanoyl-sn-glycero-3-phosphate = 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphate + CoA (9Z)-octadecenoyl-CoA + 1-tetradecanoyl-sn-glycerol 3-phosphate = 1-tetradecanoyl-2-(9Z)-octadecenoyl-sn-glycero-3-phosphate + CoA (9Z)-octadecenoyl-CoA + 1-(9Z,12Z,15Z)-octadecatrienoyl-sn-glycero-3-phosphate = 1-(9Z,12Z,15Z)-octadecatrienoyl-2-(9Z)-octadecenoyl-sn-glycero-3-phosphate + CoA (9Z)-octadecenoyl-CoA + 1-(6Z,9Z,12Z-octadecatrienoyl)-sn-glycero-3-phosphate = (6Z,9Z,12Z)-octadecatrienoyl-2-(9Z)-octadecenoyl-sn-glycero-3-phosphate + CoA (9Z)-octadecenoyl-CoA + 1-eicosanoyl-sn-glycero-3-phosphate = 1-eicosanoyl-2-(9Z)-octadecenoyl-sn-glycero-3-phosphate + CoA 1-hexadecanoyl-sn-glycero-3-phosphate + octadecanoyl-CoA = 1-hexadecanoyl-2-octadecanoyl-sn-glycero-3-phosphate + CoA (5Z,8Z,11Z,14Z)-eicosatetraenoyl-CoA + 1-hexadecanoyl-sn-glycero-3-phosphate = 1-hexadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphate + CoA 1-hexadecanoyl-sn-glycero-3-phosphate + hexadecanoyl-CoA = 1,2-dihexadecanoyl-sn-glycero-3-phosphate + CoA 1-hexadecanoyl-sn-glycero-3-phosphate + tetradecanoyl-CoA = 1-hexadecanoyl-2-tetradecanoyl-sn-glycero-3-phosphate + CoA (11Z)-octadecenoyl-CoA + 1-(9Z-octadecenoyl)-sn-glycero-3-phosphate = 1-(9Z)-octadecenoyl-2-(11Z)-octadecenoyl-sn-glycero-3-phosphate + CoA Phospholipid metabolism; CDP-diacylglycerol biosynthesis; CDP-diacylglycerol from sn-glycerol 3-phosphate: step 2/3. Expressed predominantly in adipose tissue, pancreas and liver. The HXXXXD motif is essential for acyltransferase activity and may constitute the binding site for the phosphate moiety of the glycerol-3-phosphate. The disease is caused by variants affecting the gene represented in this entry. Belongs to the 1-acyl-sn-glycerol-3-phosphate acyltransferase family.