Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_29151 ( "Common Name" text, "Genus & Species" text, "NCBI Accession Number" text, "Length (AA)" real, "% Identity to C7orf38" real, "% Similarity to C7orf38" real )

### Question ###
What is the % similarity to C7orf38 of the animal whose % identity to C7orf38 is 81?

### Accurate SQL ###

SELECT MAX("% Similarity to C7orf38") FROM table_29151 WHERE "% Identity to C7orf38" = '81'