Enables 3',5'-cyclic-GMP phosphodiesterase activity. Involved in cGMP catabolic process and positive regulation of cardiac muscle hypertrophy. Predicted to be located in several cellular components, including nucleoplasm; perikaryon; and sarcolemma. Is expressed in several structures, including alimentary system; cardiovascular system; genitourinary system; nervous system; and sensory organ. Orthologous to human PDE9A (phosphodiesterase 9A). [provided by Alliance of Genome Resources, Apr 2022]