Ternatins are a group of polyacetylated delphinidin glucosides that confer blue color to the petals of butterfly pea (Clitoria ternatea). This enzyme catalyses two reactions in the biosynthesis of ternatin C5: the conversion of delphinidin 3-O-(6”-O-malonyl)-¦Â-D-glucoside to delphinidin 3-O-(6”-O-malonyl)-¦Â-D-glucoside-3′-O-¦Â-D-glucoside, followed by the conversion of the later to ternatin C5, by transferring two glucosyl groups in a stepwise manner [1].