Enables eukaryotic initiation factor 4E binding activity and protein phosphatase 2A binding activity. Involved in several processes, including response to amino acid starvation; response to ethanol; and response to ischemia. Located in cytoplasm and nucleus. Part of protein-containing complex. Is active in glutamatergic synapse and postsynaptic cytosol. Used to study tuberous sclerosis. Human ortholog(s) of this gene implicated in lung non-small cell carcinoma. Orthologous to human EIF4EBP1 (eukaryotic translation initiation factor 4E binding protein 1). [provided by Alliance of Genome Resources, Apr 2022]