Predicted to enable metal ion binding activity and protein xylosyltransferase activity. Predicted to act upstream of or within chondroitin sulfate biosynthetic process and heparan sulfate proteoglycan biosynthetic process. Predicted to be located in Golgi membrane and extracellular region. Human ortholog(s) of this gene implicated in pseudoxanthoma elasticum. Orthologous to human XYLT2 (xylosyltransferase 2).