Chemotactic for resting CD4, CD8 T-cells and eosinophils (By similarity). Binds to CCR10 and induces calcium mobilization in a dose-dependent manner. Mainly expressed in testis, epithelial cells of normal colon, kidney, Peyer patches, lymph nodes. Also found in lower levels in brain, spleen and lung. Belongs to the intercrine beta (chemokine CC) family.