The protein encoded by GPSM2 belongs to a family of proteins that modulate activation of G proteins, which transduce extracellular signals received by cell surface receptors into integrated cellular responses. The N-terminal half of this protein contains 10 copies of leu-gly-asn (LGN) repeat, and the C-terminal half contains 4 GoLoco motifs, which are involved in guanine nucleotide exchange. This protein may play a role in neuroblast division and in the development of normal hearing. Mutations in this gene are associated with autosomal recessive nonsyndromic deafness (DFNB82). Alternative splicing results in multiple transcript variants. GPSM2 (G Protein Signaling Modulator 2) is a Protein Coding gene. Diseases associated with GPSM2 include Chudley-Mccullough Syndrome and Autosomal Recessive Non-Syndromic Sensorineural Deafness Type Dfnb.