Involved in the transport and/or accumulation of both anthocyanins and proanthocyanidins (PA)s in the vacuole. Functions in the cytosol to maintain the regular accumulation in the vacuole of PA precursors, such as epicatechin and glycosylated epicatechin. glutathione + RX = a halide anion + an S-substituted glutathione + H(+) By the fungal pathogen Verticillium dahliae. Great reduction of anthocyanin pigments in the vegetative parts and brown pigments in the seed coat. Accumulation of unextractable proanthocyanidins. Belongs to the GST superfamily. Phi family.