Trafficking adaptor for the Dsc E3 ligase complex; component of a Dsc subcomplex that sorts the E3 ligase to the Golgi and to endosomes; involved in the endosome and Golgi-associated degradation pathway (EGAD), contributing to proteostasis and lipid homeostasis; SWAT-GFP and mCherry fusion proteins localize to the endoplasmic reticulum; diploid deletion strain has high budding index