该基因编码干扰素调节的2-5a系统的一个组成部分，该系统在干扰素的抗病毒和抗增殖作用中发挥作用。该基因突变与前列腺癌易感性有关，是遗传性前列腺癌1（hpc1）等位基因的候选基因。
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.