Phosphorylates diacylglycerol (DAG) to generate phosphatidic acid (PA). a 1,2-diacyl-sn-glycerol + ATP = a 1,2-diacyl-sn-glycero-3-phosphate + ADP + H(+) Belongs to the eukaryotic diacylglycerol kinase family. Frameshift and deletion of residues 1685-1699.