where is gnupg configure file

[mick crane]

hello,
I made a key pair a couple of years ago but I never used them.
Now I try to make new Debian email server ( just for me ) all nice and 
tidy.
there is enigma plugin for roundmail.
I imported my private and public keys and they seem to be in the keyring 
as
"gnupg -K --list-secret-keys" lists the secret keys
  but ~/.gnupg/private-keys-v1.d directory is empty.
Using enigma it doesn't seem able to find the keys.
First what I would like to do is find a configure file for gnupg ?

cheers

mick

-- 
key ID: 0x4BFEBB31