Expressed in hippocampus. Belongs to the ligand-gated ion channel (TC 1.A.9) family. This protein is encoded by a hybrid gene consisting of a duplication of exons 5 through 10 of the CHRNA7 gene fused 3-prime to a copy of the FAM7A gene (exons A through E). The CHRFAM7A gene is in the opposite orientation to the CHRNA7 gene. It seems not to be represented on every human chromosome 15 and it is not clear whether the transcript is actually translated.