obsolete cyanidin 3-O-glucoside 5-O-glucosyltransferase (sinapoyl-glucose dependent) activity (obsolete GO:0102456)
OBSOLETE. Catalysis of the reaction: cyanidin 3-O-beta-D-glucoside betaine + 1-O-sinapoyl-beta-D-glucose = cyanin betaine + trans-sinapate + H+.