Predicted to enable calcium ion binding activity and unfolded protein binding activity. Predicted to be involved in protein folding. Predicted to be located in endoplasmic reticulum. Is an ortholog of C. elegans crt-1. In C. elegans, crt-1 is involved in several processes, including IRE1-mediated unfolded protein response; determination of adult lifespan; and hemidesmosome assembly.