Predicted to enable CDP-diacylglycerol-glycerol-3-phosphate 3-phosphatidyltransferase activity. Predicted to be involved in cardiolipin biosynthetic process. Predicted to act upstream of or within phospholipid biosynthetic process. Located in mitochondrion. Is expressed in several structures, including alimentary system; genitourinary system; lung; nervous system; and skin. Orthologous to human PGS1 (phosphatidylglycerophosphate synthase 1). [provided by Alliance of Genome Resources, Apr 2022]