该基因属于钙粘蛋白原基因家族，属于钙粘蛋白超家族的一个亚家族。编码蛋白包含六个细胞外钙粘蛋白结构域、一个跨膜结构域和一个不同于经典钙粘蛋白的胞质尾编码蛋白可能在大脑特定细胞-细胞连接的建立和功能中发挥作用。[由RefSeq提供，2008年7月]
This gene belongs to the protocadherin gene family, a subfamily of the cadherin superfamily. The encoded protein contains six extracellular cadherin domains, a transmembrane domain, and a cytoplasmic tail differing from those of the classical cadherins. The encoded protein may play a role in the establishment and function of specific cell-cell connections in the brain. [provided by RefSeq, Jul 2008]