Glycosyltransferase that possesses chalcone and flavonol 2'-O-glycosyltransferase activity. Converts phloretin to phlorizin (phloretin 2'-O-glucoside), a potent antioxidant. Possesses glycosyltransferase activity toward, naringenin, naringenin chalcone, eriodictyol, eriodictyol chalcone, apigenin, luteolin, kaempferol, quercetin, isoliquiritigenin, butein and caffeic acid. Can convert phloretin to phloretin 4'-O-glucoside and phloretin 4-O-glucoside. Optimum pH is 6.75. Optimum temperature is 30 degrees Celsius. Belongs to the UDP-glycosyltransferase family.