Predicted to enable phosphatidate cytidylyltransferase activity. Involved in lipid droplet formation and positive regulation of fat cell differentiation. Located in endoplasmic reticulum. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; integumental system; and sensory organ. Orthologous to human CDS1 (CDP-diacylglycerol synthase 1). [provided by Alliance of Genome Resources, Apr 2022]