Predicted to enable gap junction channel activity involved in cell communication by electrical coupling. Involved in several processes, including negative regulation of G1/S transition of mitotic cell cycle; nervous system development; and positive regulation of calcium ion transmembrane transport. Located in several cellular components, including paranode region of axon; perikaryon; and proximal neuron projection. Biomarker of Parkinson's disease. Human ortholog(s) of this gene implicated in hereditary lymphedema IC; hereditary spastic paraplegia 44; hypomyelinating leukodystrophy 2; and lymphedema. Orthologous to human GJC2 (gap junction protein gamma 2). [provided by Alliance of Genome Resources, Apr 2022]