Enables galactosyltransferase activity. Involved in several processes, including egg-laying behavior; positive regulation of axon regeneration; and proteoglycan biosynthetic process. Located in membrane. Used to study Ehlers-Danlos syndrome. Human ortholog(s) of this gene implicated in Ehlers-Danlos syndrome spondylodysplastic type 1. Is an ortholog of human B4GALT7 (
beta-1,4-galactosyltransferase 7).