Contributes to AMP-activated protein kinase activity. Acts upstream of or within glycogen biosynthetic process; glycolytic process; and response to muscle activity involved in regulation of muscle adaptation. Predicted to be located in cytosol and nucleoplasm. Predicted to be part of nucleotide-activated protein kinase complex. Predicted to be active in cytoplasm and nucleus. Is expressed in several structures, including heart and pericardium and nerve. Orthologous to human PRKAG3 (protein kinase AMP-activated non-catalytic subunit gamma 3). [provided by Alliance of Genome Resources, Apr 2022]