Enables GABA receptor binding activity and GABA-A receptor activity. Predicted to be involved in several processes, including GABAergic synaptic transmission; chloride transmembrane transport; and gamma-aminobutyric acid signaling pathway. Located in membrane. Part of receptor complex. Orthologous to human GABRG1 (gamma-aminobutyric acid type A receptor subunit gamma1). [provided by Alliance of Genome Resources, Apr 2022]