ER-resident glycoprotein involved in high-pressure tolerance; proposed role promoting proper folding of nutrient permeases in the ER during hydrostatic pressure stress; contains two transmembrane domains, a C-terminal cytoplasmic domain and a luminal region containing 12 N-linked glycans; null mutant is synthetically sick with cdc13-1; SWAT-GFP and mCherry fusion proteins localize to the vacuole while SWAT-GFP fusion also localizes to the endoplasmic reticulum