Catalyzes the inactivation of reactive sulfate esters in carcinogenic arylmethanols (PubMed:2114406). Highest activity towards ethacrynic acid and cumene hydroperoxide (PubMed:2114406). glutathione + RX = a halide anion + an S-substituted glutathione + H(+) Homodimer. Highest values found in liver followed by testis, adrenal gland, kidney, lung, brain and skeletal muscle. In liver, highest expression found in central vein limiting plate hepatocytes. In lung, expressed mainly in Clara cells of the bronchiolar epithelium and, at low levels, in type II alveolar cells. Belongs to the GST superfamily. Theta family.