該基因編碼一種蛋白質，其氨基端含有一個dexh盒，羧基端含有一個RNA基序。編碼蛋白作為一種核糖核酸酶發揮作用，由RNA干擾和小時態RNA（strna）途徑產生抑制基因表達的活性小RNA成分。選擇性剪接導致多個轉錄變體。
This gene encodes a protein possessing an RNA helicase motif containing a DEXH box in its amino terminus and an RNA motif in the carboxy terminus. The encoded protein functions as a ribonuclease and is required by the RNA interference and small temporal RNA (stRNA) pathways to produce the active small RNA component that represses gene expression. Alternative splicing results in multiple transcript variants.