galactosyltransferase activity raffinose-raffinose alpha-galactotransferase activity https://github.com/geneontology/go-ontology/issues/30193 molecular_function raffinose-raffinose a-galactosyltransferase activity Catalysis of the reaction: 2 raffinose = sucrose + 1F-alpha-D-galactosylraffinose. raffinose-raffinose alpha-galactosyltransferase activity EC:2.4.1.166 RHEA:14125 raffinose:raffinose alpha-D-galactosyltransferase activity raffinose (raffinose donor) galactosyltransferase activity GO:0047234 MetaCyc:RXN-11490 raffinose:raffinose alpha-galactosyltransferase activity