Functions question

Hi,

Just wondering, is there a way to see a function from within psql?  I
was looking at the \? command list and found \df but that didn't seem to
work.  I created a function, ins_news(), and when I typed \df ins_news()
it came back and said zero rows.  Using pgadmin II on a windows
workstation I can see the function I created and the function works so I
know it's there but how can I list out the function?  There must be a
way since it is listed in pgadmin.

Thanks in advance,
Linn