Predicted to enable protein-tyrosine sulfotransferase activity. Predicted to be involved in peptidyl-tyrosine sulfation. Is an ortholog of C. elegans tpst-1. In C. elegans, tpst-1 is involved in several processes, including collagen metabolic process; cuticle development involved in collagen and cuticulin-based cuticle molting cycle; and regulation of nematode larval development.