Predicted to enable cGMP-dependent protein kinase activity and identical protein binding activity. Involved in cellular hypotonic response and negative regulation of cell volume. Acts upstream of or within circadian regulation of gene expression. Located in plasma membrane. Is expressed in brain; limb segment; lung; and small intestine. Orthologous to human PRKG2 (protein kinase cGMP-dependent 2). [provided by Alliance of Genome Resources, Apr 2022]