Predicted to enable diacylglycerol O-acyltransferase activity. Predicted to be involved in triglyceride biosynthetic process. Predicted to be located in endoplasmic reticulum membrane. Is an ortholog of human MOGAT1 (monoacylglycerol O-acyltransferase 1) and MOGAT2 (monoacylglycerol O-acyltransferase 2).