Is predicted to encode a protein with the following domains: Ubiquitin family; STI1 domain; Ubiquitin-like domain superfamily; Heat shock chaperonin-binding; Ubiquitin-like domain; and UBA-like superfamily. Is an ortholog of C. elegans ubql-1. In C. elegans, ubql-1 is involved in ERAD pathway; negative regulation of double-strand break repair via homologous recombination; and protein export from nucleus.