obsolete sesaminol-2-O-gentiobioside 1,6-glucosyltransferase activity (obsolete GO:0102424)
OBSOLETE. Catalysis of the reaction: (+)-sesaminol 2-O-beta-D-gentiobioside + UDP-alpha-D-glucose = (+)-sesaminol 2-O-beta-D-gentiotrioside + UDP + H+.