Soyasapogenol B glucuronide galactosyltransferase (, UDP-galactose:SBMG-galactosyltransferase, UGT73P2, GmSGT2 (gene), UDP-galactose:soyasapogenol B 3-O-glucuronide beta-D-galactosyltransferase) is an enzyme with systematic name UDP-alpha-D-galactose:soyasapogenol B 3-O-glucuronide beta-D-galactosyltransferase. This enzyme catalyses the following chemical reaction
This enzyme takes part of the biosynthetic pathway for soyasaponins.