Enables cAMP binding activity; calcium- and calmodulin-regulated 3',5'-cyclic-GMP phosphodiesterase activity; and calmodulin-dependent cyclic-nucleotide phosphodiesterase activity. Involved in negative regulation of insulin secretion involved in cellular response to glucose stimulus and sensory perception of smell. Acts upstream of or within response to calcium ion. Located in neuronal cell body. Human ortholog(s) of this gene implicated in autosomal dominant nonsyndromic deafness 74. Orthologous to human PDE1C (phosphodiesterase 1C). [provided by Alliance of Genome Resources, Apr 2022]