該基因編碼絲氨酸/蘇氨酸激酶家族的一個成員，該家族包含兩個PAS結構域該基因的表達受葡萄糖調節，編碼蛋白在胰島素基因表達調控中起作用這種基因的下調可能在2型糖尿病中起作用。另外，已經觀察到該基因編碼多個亞型的剪接轉錄變體。
This gene encodes a member of the serine/threonine kinase family that contains two PAS domains. Expression of this gene is regulated by glucose, and the encoded protein plays a role in the regulation of insulin gene expression. Downregulation of this gene may play a role in type 2 diabetes. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene.