Enables intracellular cyclic nucleotide activated cation channel activity and small GTPase binding activity. Involved in positive regulation of corticotropin secretion; regulated exocytosis; and regulation of cAMP-mediated signaling. Located in cell tip and perinuclear region of cytoplasm. Part of intracellular cyclic nucleotide activated cation channel complex. Orthologous to human PEX5L (peroxisomal biogenesis factor 5 like). [provided by Alliance of Genome Resources, Apr 2022]