該基因編碼干擾素調節的2-5a系統的一個組成部分，該系統在干擾素的抗病毒和抗增殖作用中發揮作用。該基因突變與前列腺癌易感性有關，是遺傳性前列腺癌1（hpc1）等位基因的候選基因。
This gene encodes a component of the interferon-regulated 2-5A system that functions in the antiviral and antiproliferative roles of interferons. Mutations in this gene have been associated with predisposition to prostate cancer and this gene is a candidate for the hereditary prostate cancer 1 (HPC1) allele.