该基因编码犰狳蛋白家族的一个成员，在细胞间的粘附和信号转导中起作用。多重翻译起始密码子和选择性剪接导致许多不同的亚型被翻译。并非所有描述的转录变体的全长性质都已确定在该基因与相邻的上游硫氧还蛋白相关跨膜蛋白2（TMX2）基因之间也存在通读转录。[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]