Predicted to enable several functions, including acetylgalactosaminyltransferase activity; glucuronyl-galactosyl-proteoglycan 4-alpha-N-acetylglucosaminyltransferase activity; and manganese ion binding activity. Predicted to be involved in N-acetylglucosamine metabolic process and UDP-N-acetylgalactosamine metabolic process. Predicted to be located in cytosol; endoplasmic reticulum; and nucleoplasm. Orthologous to human EXTL2 (exostosin like glycosyltransferase 2). [provided by Alliance of Genome Resources, Apr 2022]