The domain within your query sequence starts at position 443 and ends at position 755; the E-value for the RPT_2 domain shown below is 8.53e-7.

EQQLLRRFWFVWHQQAAVCQLERQQQAMAIAHHHSGLLRRAFCIWKESTQGFRIERMGRA
QAAHFHSAQLLSRAWSMWRECLALRLEEQQKLKCAALHSQCILLRRALQKWLVYQNRVRS
VLREVAARERQHNRQLLWWALHLWRENTMARLDGAKKTSQARVHYSRTLCSKVLVQWREV
TSVQIYYRQKEAAALREARKALDRGRLQNWFQHWRFCSQRAAQQRFQLGQAAQHHHWQLL
MEAMARWKAHHLGCIRKKFLQRQAAQLLAQRLSRACFCQWRKQLAVRKQEQWGTARALWL
WAFSLQAKVWTAW

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