Is there any way to execute a wordpress plugin's call tag

[pluginname=parameters]

from custom fields?


Actually I'm trying with a function and then calling it from the template:

<?php if ( function_exists('get_custom_field_value') ){
        get_custom_field_value('my custom field', true);
} ?>

but my result is the plugin call tag

[pluginname=parameters]

.

Tell me that is possible, please ;)

Thanks!