Is there a BMLQ function that will perform a currency conversion?

Summary:

I have been taked with creating a function that will flag any quote that exceeds £10K (10,000 GBP).

Simple enough but the twist is that the quote could be in a currency other than GBP so I need to perform a conversion. 

We have multi-currency enabled for GBP, EUR and AED and the conversion rates are set up in the General Site options. 

I could hard code the conversion rates but I would prefer to grab the current system conversion rates.

I've searched but cannot find a way to grab the conversion rates via BML. 

It would be nice if there was a function where you could pass the cost along with the the currency you want to convert it to, and it would return the converted value.