Automated description from the Alliance of Genome Resources
Exhibits IgA binding activity and protein binding activity, bridging. Contributes to immunoglobulin receptor binding activity. Predicted to be involved in several processes, including defense response to other organism; glomerular filtration; and positive regulation of protein oligomerization. Localizes to the dimeric IgA immunoglobulin complex. Is expressed in intestine; serum; and spleen. Orthologous to human JCHAIN (joining chain of multimeric IgA and IgM).