Enables 2',3'-cyclic-nucleotide 3'-phosphodiesterase activity and cyclic nucleotide binding activity. Involved in several processes, including aging; regulation of mitochondrial membrane permeability; and response to lipopolysaccharide. Located in several cellular components, including mitochondrial membrane; myelin sheath abaxonal region; and myelin sheath adaxonal region. Used to study carotid stenosis. Human ortholog(s) of this gene implicated in hypomyelinating leukodystrophy 20; multiple sclerosis; and schizophrenia. Orthologous to human CNP (2',3'-cyclic nucleotide 3' phosphodiesterase). [provided by Alliance of Genome Resources, Apr 2022]