Predicted to enable epidermal growth factor receptor binding activity and polymeric immunoglobulin receptor activity. Predicted to be involved in several processes, including cell surface receptor signaling pathway; detection of chemical stimulus involved in sensory perception of bitter taste; and immunoglobulin transcytosis in epithelial cells mediated by polymeric immunoglobulin receptor. Predicted to be located in extracellular space; recycling endosome membrane; and transport vesicle. Predicted to be part of receptor complex and secretory IgA immunoglobulin complex. Predicted to be active in plasma membrane. Orthologous to human PIGR (polymeric immunoglobulin receptor). [provided by Alliance of Genome Resources, Apr 2022]