The domain within your query sequence starts at position 12 and ends at position 320; the E-value for the RPT_2 domain shown below is 8.53e-7.

EQKILQKVFGEWREEWWVSQREWKLCVRADCHYRYYLYNLIFQNWKTFVHQQREMRKRFR
IAEHHDTKQKMCQAWKSWLIYMVSRRTKLHMKTTALEFRRQSVLCFWWSKWRWRLGQAHA
EHALHAVAVKHRALSLQLQGWLRWQEQLLISQRDRRKEATAVQHYQHWQKQRSLKAWLKY
LQICRVKRWQNEMAVQFHRATVLQIHFCDWQWAWEWRQSLSAHQALVVKLAGRMVLRRAF
THWKHYMLLQAEEAAQREAAAEHRQHYLLYSCFRAFKDNVTQARLQQTRKKLAQQLRDTT
LLHRFWNLW

This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.