Predicted to enable acetylglucosaminyltransferase activity and glucuronosyltransferase activity. Predicted to be involved in protein glycosylation. Predicted to be located in endoplasmic reticulum membrane. Predicted to be integral component of membrane. Predicted to be active in Golgi apparatus. Orthologous to human EXTL1 (exostosin like glycosyltransferase 1). [provided by Alliance of Genome Resources, Apr 2022]