The domain within your query sequence starts at position 531 and ends at position 799; the E-value for the RPT_3 domain shown below is 2.4e-5.

RRAFCIWKESTQGFRIERMGRAQAAHFHSAQLLSRAWSMWRECLALRLEEQQKLKCAALH
SQCILLRRALQKWLVYQNRVRSVLREVAARERQHNRQLLWWALHLWRENTMARLDGAKKT
SQARVHYSRTLCSKVLVQWREVTSVQIYYRQKEAAALREARKALDRGRLQNWFQHWRFCS
QRAAQQRFQLGQAAQHHHWQLLMEAMARWKAHHLGCIRKKFLQRQAAQLLAQRLSRACFC
QWRKQLAVRKQEQWGTARALWLWAFSLQA

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