Predicted to enable several functions, including cytokine receptor activity; interleukin-27 receptor binding activity; and peptide hormone binding activity. Predicted to be involved in T cell proliferation and leptin-mediated signaling pathway. Predicted to be part of receptor complex. Predicted to be active in external side of plasma membrane. Orthologous to human EBI3 (Epstein-Barr virus induced 3). [provided by Alliance of Genome Resources, Apr 2022]