Is predicted to encode a protein with the following domains: Glutathione S-transferase, C-terminal domain; Thioredoxin-like fold; Glutathione S-transferase N-terminal domain; Glutathione S-transferase, C-terminal domain superfamily; Thioredoxin-like superfamily; and Metaxin, glutathione S-transferase domain. Is an ortholog of C. elegans cdr-4. In C. elegans, cdr-4 is involved in stress response to cadmium ion.