The domain within your query sequence starts at position 1317 and ends at position 1549; the E-value for the RPT_6 domain shown below is 5.96e-5.

GPEEIKKPATSTMVSEAIKYSSAGTERSQSQPDYPECMWIYEQDEMLSIGIEEVFDILPL
YGVLRPYSSHQISFTFYGHCDIIARAKALCEVEGGPTYEVLLKGEASLVNYSFDTKDINY
GLQLFDHVTEREITLKNTGKVGFEFNVLSNYRSSQRNLLPGVPLILPLSGFIQSNKEQVL
KVYYLPGIPEVFQRNFQIQIAHLVPENITLYGEGIFPRISLDLHRNLQGNEKY

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