user: Question: What is the % identity to C7orf38 of the animal whose genus & species is Mus musculus?
Columns: ['Common Name', 'Genus & Species', 'NCBI Accession Number', 'Length (AA)', '% Identity to C7orf38', '% Similarity to C7orf38']
Types: ['text', 'text', 'text', 'real', 'real', 'real']
Sample row: ['Chimp', 'Pan troglodytes', 'XP_001139775.1', 573.0, 99.0, 99.0]
SQL:

assistant: SELECT "% Identity to C7orf38" FROM "Table" WHERE "Genus & Species" = 'Mus musculus';