Predicted to enable identical protein binding activity; protein heterodimerization activity; and transmembrane signaling receptor activity. Predicted to be involved in several processes, including positive thymic T cell selection; protein transport; and regulation of lymphocyte apoptotic process. Predicted to be located in cytosol and plasma membrane. Predicted to be part of alpha-beta T cell receptor complex. Predicted to be active in external side of plasma membrane. Human ortholog(s) of this gene implicated in immunodeficiency 17. Orthologous to human CD3G (CD3g molecule). [provided by Alliance of Genome Resources, Apr 2022]