該基因編碼犰狳蛋白家族的一個成員，在細胞間的粘附和信號轉導中起作用。多重翻譯起始密碼子和選擇性剪接導致許多不同的亞型被翻譯。并非所有描述的轉錄變體的全長性質都已確定在該基因與相鄰的上游硫氧還蛋白相關跨膜蛋白2（TMX2）基因之間也存在通讀轉錄。[由RefSeq提供，2010年12月]
This gene encodes a member of the Armadillo protein family, which function in adhesion between cells and signal transduction. Multiple translation initiation codons and alternative splicing result in many different isoforms being translated. Not all of the full-length natures of the described transcript variants have been determined. Read-through transcription also exists between this gene and the neighboring upstream thioredoxin-related transmembrane protein 2 (TMX2) gene. [provided by RefSeq, Dec 2010]