| Function | Description |
| btahomology | Contains data for genes that are homologous to genes in Bos taurus |
| btahomologyDATA | Genes that are Homologous to Bos taurus |
| btahomologyHGID | A vector containing all the HomoloGeneIDs for Bos taurus |
| btahomologyLL2HGID | Mappings between public database ids and NCBI's Internal HomoloGeneIDs for Bos taurus |
| btahomologyORGCODE | A data frame for mappings between organism scientific names, NCBI code, and three-letter short names for various organisms |
| btahomologyQC | Quality control information for btahomology |