Predicted to be involved in several processes, including antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent; detection of chemical stimulus involved in sensory perception of bitter taste; and positive regulation of T cell mediated cytotoxicity. Predicted to be active in external side of plasma membrane and extracellular space. Orthologous to human AZGP1 (alpha-2-glycoprotein 1, zinc-binding). [provided by Alliance of Genome Resources, Apr 2022]