obsolete pelargonidin 3-O-glucoside 7-O-glucosyltransferase (acyl-glucose dependent) activity (obsolete GO:0102511)
OBSOLETE. Catalysis of the reaction: pelargonidin 3-O-beta-D-glucoside + 1-O-vanilloyl-beta-D-glucose = pelargonidin 3,7-di-O-beta-D-glucoside + vanillate + H+.