This gene codes for a protein that is a member of the eukaryotic diacylglycerol kinase family. It functions as a modulator in intracellular signaling pathways, competing with protein kinase C for the second messenger diacylglycerol. Additionally, it is crucial for the phosphorylation of diacylglycerol to phosphatidic acid and the resynthesis of phosphatidylinositols. For this gene, several transcript variants encoding various isoforms have been found.