Predicted to enable magnesium ion binding activity; manganese ion binding activity; and protein xylosyltransferase activity. Predicted to be involved in chondroitin sulfate proteoglycan biosynthetic process and heparan sulfate proteoglycan biosynthetic process. Predicted to act upstream of or within heparin biosynthetic process and proteoglycan biosynthetic process. Predicted to be located in extracellular space. Human ortholog(s) of this gene implicated in pseudoxanthoma elasticum. Orthologous to human XYLT2 (xylosyltransferase 2). [provided by Alliance of Genome Resources, Apr 2022]