Is predicted to encode a protein with the following domains: Metaxin, glutathione S-transferase domain; Thioredoxin-like fold; Thioredoxin-like superfamily; Glutathione S-transferase N-terminal domain; Glutathione S-transferase, C-terminal domain; and Glutathione S-transferase, C-terminal domain superfamily. Is an ortholog of C. elegans cest-12 and wht-1.