| Function | Description |
| ggahomology | Contains data for genes that are homologous to genes in Gallus gallus |
| ggahomologyDATA | Genes that are Homologous to Gallus gallus |
| ggahomologyHGID | A vector containing all the HomoloGeneIDs for Gallus gallus |
| ggahomologyLL2HGID | Mappings between public database ids and NCBI's Internal HomoloGeneIDs for Gallus gallus |
| ggahomologyORGCODE | A data frame for mappings between organism scientific names, NCBI code, and three-letter short names for various organisms |
| ggahomologyQC | Quality control information for ggahomology |