Enables GABA receptor activity; identical protein binding activity; and protein domain specific binding activity. Predicted to be involved in several processes, including chemical synaptic transmission; chloride transmembrane transport; and regulation of membrane potential. Predicted to be located in glutamatergic synapse. Predicted to be part of GABA-A receptor complex. Predicted to be active in GABA-ergic synapse and neuron projection. Predicted to be integral component of plasma membrane. Orthologous to human GABRR1 (gamma-aminobutyric acid type A receptor subunit rho1). [provided by Alliance of Genome Resources, Apr 2022]