Hippocalcin like 4, also known as HPCAL4, is a humangene.
The protein encoded by this gene is highly similar to human hippocalcin protein and hippocalcin like-1 protein. It also has similarity to rat neural visinin-like Ca2+-binding protein-type 1 and 2 proteins. It is a member of neuronal calcium sensor family. This encoded protein may be involved in the calcium-dependent regulation of rhodopsin phosphorylation. The transcript of this gene has multiple polyadenylation sites.
Kobayashi M, Sakai E, Furuta Y, Takamatsu K (1999). "Isolation of two human cDNAs, HLP3 and HLP4, homologous to the neuron-specific calcium-binding protein genes". DNA Seq.9 (3): 171–6. doi:10.3109/10425179809072192. PMID10520747.