Glucosyltransferase acting on abscisic acid (ABA) but not on auxin (IAA). 2-cis-(+)-abscisate + UDP-alpha-D-glucose = beta-D-glucopyranosyl cis-(+)-abscisate + UDP Optimum pH is 3.87-7. Optimum temperature is 37 degrees Celsius. Expressed in flowers and fruits. Highly expressed during fruit ripening and flower development. Belongs to the UDP-glycosyltransferase family.