该基因编码一种在人体组织中分布多样的Ⅰ型完整膜糖蛋白该蛋白的生理功能可能与其粘蛋白类型有关其他物种的同源蛋白被描述为分化抗原和流感病毒受体该蛋白的特异功能尚未确定，但已被认为是肺损伤的标志物。另外，还发现了编码不同亚型的剪接转录变体。[由RefSeq提供，2008年7月]
This gene encodes a type-I integral membrane glycoprotein with diverse distribution in human tissues. The physiological function of this protein may be related to its mucin-type character. The homologous protein in other species has been described as a differentiation antigen and influenza-virus receptor. The specific function of this protein has not been determined but it has been proposed as a marker of lung injury. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]