Enriched in male based on proteomic studies. Is predicted to encode a protein with the following domains: Thioredoxin; Thioredoxin-like superfamily; Thioredoxin domain; and Thioredoxin-like domain. Is an ortholog of C. elegans Y49E10.4; M04D5.1; and C03H12.1. In C. elegans,
pdi-1 is involved in IRE1-mediated unfolded protein response.