Efcab5, short for EF-hand calcium binding domain 5, likely plays a role in calcium-related functions considering its name indicates an EF-hand calcium-binding domain. Calcium-binding proteins are often involved in signal transduction pathways and various cellular processes, highlighting its potential importance in normal biological function [3].

In genetic studies, Efcab5 has been associated with multiple conditions. In a GWAS for assessing the brain glymphatic system (GS) function, Efcab5 was among 58 genes prioritized in DTI-ALPS index subtypes and associated with neurodegenerative diseases [1]. In whole-exome sequencing of biliary tract cancers in primary sclerosing cholangitis, Efcab5 was identified as one of the candidate cancer genes, suggesting its possible role in cancer development [2]. In a family with a monozygotic twin pair concordant for autism spectrum disorder (ASD), a truncating variation in Efcab5 was found, hinting at its potential role in the genetic etiology of ASD, at least in some patients [4]. In skin cutaneous melanoma, Efcab5 was significantly associated with prognosis, indicating its importance in this cancer [5].

In conclusion, Efcab5 is potentially involved in a range of biological processes related to neurodegenerative diseases, cancer, and ASD. Its associations with these disease conditions suggest that understanding its function could provide insights into the underlying disease mechanisms, potentially leading to new diagnostic or therapeutic strategies.