B4GALT5 and amyotrophic lateral sclerosis: Furthermore, we also identified Beta-1,4-galactosyltransferase 5 (B4GALT5) and Golgi Brefeldin A Resistant Guanine Nucleotide Exchange Factor a (GBF1) as harboring the potential cis-regulatory relationships disrupted by likely causal variants in ALS and cerebellar volume GWAS loci (Figure 6C and Table S13).