該基因編碼一種分泌的細胞外基質蛋白，被認為是控制細胞間相互作用的關鍵，在大腦發育過程中，細胞定位和神經元遷移至關重要該蛋白可能與精神分裂癥、孤獨癥、雙相情感障礙、抑郁癥和顳葉癲癇相關的遷移缺陷有關該基因突變與常染色體隱性遺傳性小腦發育不全相關已鑒定出兩個編碼不同亞型的轉錄變體其他轉錄變體已被描述，但其全長性質尚未確定。
This gene encodes a large secreted extracellular matrix protein thought to control cell-cell interactions critical for cell positioning and neuronal migration during brain development. This protein may be involved in schizophrenia, autism, bipolar disorder, major depression and in migration defects associated with temporal lobe epilepsy. Mutations of this gene are associated with autosomal recessive lissencephaly with cerebellar hypoplasia. Two transcript variants encoding distinct isoforms have been identified for this gene. Other transcript variants have been described but their full length nature has not been determined.